Wing Panel Processing Plan

Industry	Aerospace
Part	Wing skin panel
Material	6061-T651
Dimensions	Length 6000mm, Width 1200mm, Thickness 70mm, Thinnest wall 3mm
Key Challenges	Large-sized part, thin walls, high metal removal rate, significant deformation
Result	The metal removal rate increased to 3-4 times that of traditional equipment, delivery time was shortened by about 50%, successfully resolving the conflict between large size, high removal rate, and low deformation control.

Technical Challenge

Traditional wing panels are mostly assembled panels, made up of skin, stringers, and other components. They are small in size, easy to process in separate parts, have low equipment requirements, and experience little stress and deformation during processing. In contrast, one-piece panels are large in material size, have high material removal rates, long processing cycles, and a high risk of deformation, demanding more from both equipment and processes.

Solution

The BMI20016 dual-gantry mobile high-speed machine is a machine tool specifically designed for machining wing components. It has a length travel of 20 meters and a width travel of 1.6 meters, basically covering the machining of all wing structural parts. Its two spindles operate independently, allowing for simultaneous machining of a single part or separate machining of two parts, meeting the needs of large-sized integral wing skin panels. Additionally, it can reach an acceleration of 0.4G and a maximum spindle speed of 24,000 rpm, enabling high-speed, deep-cut, and high-feed machining, significantly improving material removal efficiency and shortening the machining cycle. To address the issue of thin-walled structures being prone to deformation, the machine is equipped with a high-rigidity bed and a dynamic thermal compensation system, effectively suppressing vibration and thermal deformation during cutting. Combined with specialized clamping solutions and layered cutting strategies, it further controls deformation caused by residual stress release.

Results

In practice, using this machine to process integral wing panels can increase the metal removal rate to 3 to 4 times that of traditional equipment while ensuring profile accuracy and surface quality, shorten delivery times by about 50%, and successfully solve the conflict between large size, high removal rate, and low deformation control.

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